Apparatus for separating oats from hulls



y L. B. BAUMHOVER 2,002,133

APPARATUS FOR SEPARATING OATS FROM HULLS Filed Sept. 8, 1932 2 Sheets-Sheet 1 L B ugazzmfio vez'.

May 21, 1935. A B. BAUMHOVER APPARATUS FOR SEPARATING OATS FROM HULI'JS Filed Sept. 8, 1932 2 Sheets-Sheet 2 i A B zaaznfial ez'.

Patented May 21, 1935" humerus "ma; surname OATS} 1;; FROMHIJLLS' Iholl isrE Banmliover, Gan-011;. Iowa. Application September 8', 1932. Serial N0. 632,259 1 1: Claim. (c1. zoa-zs This invention elatesto apparatus for separating cats from their hulls, and has. forits, object the provision of a simple; andeasily operated ma.- chine in which the. grain will bev delivered from a 6 grinding machine intoa hopper and discharged from the hopper into a. separator which will deliver the oats and the hulls into separatere ceptacles. The invention U also provides means.

whereby the operating mechanism may be easily 10 set in inoperativepositi'on when desired. The invention is illustrated in the accompanying drawings and consists in certain novel features which will be fully disclosed.

In the drawings, Fig. 1 is alongitudinal vertical section through an apparatus embodying the invention,

Fig. 2 is a view, partly in plan and partly in horizontal section, on approximately the line 2-2 of Fig. 1,

Fig. 3 is a detail section through the gearing.

The apparatus embodies a supporting frame I which may be of any appropriate construction and upon which is mounted a hopper 2 into which the cats and hulls are delivered from the mill. The hopper 2 is set upon a box-like base portion 3 which is carried directly by the supporting frame and through which extends longitudinally the main shaft 4. As shown most clearly in Fig. 1, the bottom of the base member 3 is inclined slightly toward one end and at its lower end is a nozzle or discharge spout 5 through which the material is delivered into a separating cylinder 6. At one end, the main shaft 4 has a driving pulley l secured thereto which pulley is adapted to receive motion through a belt 8 driven by any convenient or preferred prime motor. A gear 9 is also secured on the shaft 4 and said gear meshes with a gear l mounted loosely upon an intermediate shaft H which extends into a horizontal slot I2 in a cross bar 13 forming a part of the main frame, and a nut M on the end of said intermediate shaft turned home against the beam 3 serves to secure the shaft in a set position. Upon reference to Fig. 3, it will be noted that the shaft is constructed with an annular shoulder l5 so that, when the nut I4 is turned home, the shaft will be clamped to the opposite sides of the beam. By loosening the nut and shifting the shaft along the slot I2, the gear l0 may bemoved out 50 of mesh with the driving gear 9 and the machine .thereby rendered inoperative to permit repairs or cleaning. The gear I0 has a pinion l6 fixed to one side thereof and said pinion l6 meshes with a gear I! on the end of a driven shaft 8 which is journaled in suitable bearings upon the main frame and-is arrangedbelow the. base member 3,asv shown in Fig.1, The driven shaft I8. is equipped atthe end remote from. the gear [1. with a knuckle: |9Yforming one member of. a, universal joint 20, whereby motion is imparted. to'the 5:

shaft 2| which carries. thefseparatingcylinder 6.. As shown most clearly in Fig. l, the. universal joint 2|! is provided with a socket. 22 of non-circular cross. section. in which is. received the upper end of the shaft 2| which is also of a non-circular 10 cross section whereby the rotation of the socket will impart rotation to the shaft. The lower end of the shaft 2| is journaledin a suitable bearing 23 secured upon the main frame and the separating cylinder 6 is a drum of foraminous material whereby, as it is rotated, the oats or particles of like size may pass through the sides of the cylinder while the larger hulls and waste matter will pass through the open lower end thereof, it being noted that the cylinder is disposed in an inclined position so that the material fed thereto will gravitate toward the lower end of the same. The separating cylinder or screen is carried by the shaft 2| through the medium of radial arms or spokes 24 which are formed integral with or rigid- 25 ly secured to the shaft and extend therefrom to the wall of the cylinder which is rigidly secured upon their outer ends. A casing 25 is mounted upon the main frame and houses thecylinder so that dust and fine particles which may be thrown into the air around the cylinder will be prevented from scattering over a wide area and constituting a source of discomfort to the operators.

In use, the mechanism which has been described is arranged adjacent a grinding mill so that the product of the mill may pass directly into the hopper 2 and thence gravitate into the box-like member 3, passing from said member through the spout 5 into the rotatable separating cylindrical drum. Motion being imparted to the shaft 4 through the pulley 1 and the intermediate gearing being set at the inner end of the slot l2, the shaft l8 will be rotated and its rotation will be transmitted through the universal joint 20 and the socket 22 directly to the shaft 2|. The separating cylinder or drum will, of course, rotate with the shaft 2|. and the oats and hulls will be thereby agitated so that the hulls will flow to and through the open lower end of the cylinder and the cats will pass through the sides of the cylinder in an obvious manner. It will be understood that receptacles will be placed below the separating reticulated cylinder to receive the hulls and the oats, respectively, or, in many instances, the apparatus may be set upon an upper floor in a building and bins provided below the separator to receive the respective materials discharged therefrom. The device is exceedingly simple and compact and may be operated with a very slight expenditure of power. When it has been once set in operation, it will continue to operate automatically without any care from an attendant and, when the intermediate gear is set in the inoperative position, the machine will be held in the inoperative position so that it will not be accidentally started and possibly inflict injury upon persons near it.

It will be noted that the bottom of the hopper is very gently sloped so that the material fed into the hopper will not flow therefrom in a rap-' I manner instead of flowing directly to and through the main shaft 4 to agitate the material Without rotating the drum, the intermediate shaft ll maybe slid toward the outer end of the slot l2 sothat the double gear I ii and II will be carriedout of mesh with the gears 9 and I! and I the shaft I 8, which imparts rotation to the drum,

will consequently be at rest. It is also to be noted that the drum and the driving gearing are at opposite sides of the ends of the hopper. This arrangement permits a relatively large hopper to be used and permits the drum to be brought close to the hopper so that it will not be necessary to provide a long spout tocarry the material from the hopper into the drum, norwill it be necessary to cut away or otherwise. form the hopper so as to reduce the capacity thereof.

Having thus described the invention, I claim:

' apparatus of the character described comprising a supporting frame, a hopper carried by said frame and having its bottom inclined downwardlyand terminating in a discharge spout at id stream but will escape slowlyso that it will be acted upon by the drum in avery efficient.

one end, a downwardly inclined reticulated separating drum arranged at one side of and below the hopper to receive material discharged through said spout, a driving shaft rotatably mounted and extending through the lower portion of said hopper above said spout, a shaft disposed axially through said drum and carrying the drum, a horizontal shaft disposed below the hopper and having at one end a universal connection with the upper end of the shaft in the drum, and means disposed at the other side of the hopper for transmitting rotary motion from the driving shaft to said horizontal shaft.

LOUIS B. BAUMI-IOVER. [L. s.] 

